Structure:single-strand bare copper ,polythene insulated two insulated wire twist together as couple,polythene or PVC or non-haloge jacket.
Standards:GB YD/T 1019-2001,US.Strandards ANSI/EIA/TIA-568-B2-2001,it is apply to ISDN.ATM155Mbps,622Mbps and 100Mbps TPDDI in high speed Internet,KM Interne and any other six-class cable.
